26409396 has 96 divisors (see below), whose sum is σ = 70647808. Its totient is φ = 7620480.

The previous prime is 26409391. The next prime is 26409413. The reversal of 26409396 is 69390462.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26409391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207885 + ... + 208011.

Almost surely, 2^26409396 is an apocalyptic number.

26409396 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26409396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35323904).

26409396 is an abundant number, since it is smaller than the sum of its proper divisors (44238412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26409396 is a wasteful number, since it uses less digits than its factorization.

26409396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 26409396 is about 5139.0072971343. The cubic root of 26409396 is about 297.7964316961.

The spelling of 26409396 in words is "twenty-six million, four hundred nine thousand, three hundred ninety-six".